`LOGIN_REDIRECT_URL = "/"` results in confusing user flow

[sumanthratna]

1. login
2. go to /accounts/signup or /accounts/login
3. 302 redirect to / -- confusing

live/hacktj_live/settings.py

Line 159 in c272079

LOGIN_REDIRECT_URL = "/"

instead, redirect to /accounts/profile (default setting value) to indicate that user is already logged in